I recently watched this episode (summary can be found here), and the wrap-up seemed to leave a lot unexplained. Some specific questions I have are:
Why did they kill two other men before Seeger? Was it just as Gibbs suggested, to make it look like serial killing and disguise the motive?
Why did they remove all the clothes and bind the victims? Was this again to establish the pattern and hide the true motive?
And most baffling of all,
- How does the ending explain how they managed to commit the crime? The key point was that both suspects had reliable alibis; I don't see how the fact that they are twins could change that (one was confirmed to be at a conference in DC while the other one was at the bank, on camera). There are two women and two roles to be filled there, so the fact that they are twins is inconsequential - still neither of them could have done it. What is the explanation then? Was it just bad writing, or am I missing something?